Rock Doc

Buster Brown, my big mutt from the dog pound, is now 10 years old. Perhaps because he’s a senior citizen it took him a full week to learn how to operate the dog door I had installed last winter. He was used to going to the back door and barking to be let in or out. Once the dog door was there, I held it open, showing him the great outdoors, and encouraged him to go through it. I had to repeat this maneuver many times, patiently making happy noises when he ultimately would hop through the small door.I thought back to that week-long effort when I was reading Sean Senechal’s book Dogs Can Sign, T...